A triangle.
A polygon is a figure with 3 or more sides.
A triangle.
A polyhedran is a 3-dimentional figure that has sides that are polygons. A polygon is a 2-dimentional figure with straight sides, a closed side.
square
If they are straight sides, then a polygon. Otherwise, simply "a closed plane figure with 3 or more sides".
A polygon is formed by three or more sides. there is no specific figure.
A triangle.
-3
A polygon is a figure with 3 or more sides.
triangle .. ^^
A polygon is a closed figure bounded by sides only. Triangle is the polygon of 3 sides and 3 vertices.
When it has 3 or more sides
A triangle.
square
A polyhedran is a 3-dimentional figure that has sides that are polygons. A polygon is a 2-dimentional figure with straight sides, a closed side.
A figure with twice as many sides as a triangle is a hexagon. A triangle has 3 sides, so double that would be 6 sides. A hexagon is a polygon with 6 sides and 6 angles. It is a regular polygon with all sides and angles congruent.